The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 1996
Filed:
Feb. 25, 1994
Applicant:
Inventors:
Atsushi Ichise, Kanagawa, JP;
Kenji Inoue, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03G / ; G01L / ; G01L / ;
U.S. Cl.
CPC ...
381106 ; 381104 ; 395-217 ; 395-223 ; 395-21 ;
Abstract
Audio signals are compressed by selecting either a first compression mode providing high-quality sound and a relatively long processing time or a second compression mode having a shorter processing time in accordance with the contents of the audio input signals, for example, whether the signals are audio signals such as music or voice signals such as an announcement. By providing selectable compression time periods music can be enjoyed in high-quality sound, while the announcement of a message can be delivered satisfactorily without the loss of any information.